Disclaimer: I own nothing
A/N: Always wanted to write a fic about All Might's and Deku's Halloween outfits, finally found an acceptable plot for it... Who am I kidding? This is PWP. Either way, enjoy!
Summary: Toshinori and Izuku head out to the UA's annual Halloween Party. Just before they arrive at the location, he realises that his student isn't wearing anything under his ghost costume. DekuMight, Established Relationship, Sex Toy Under Clothing, Spanking, Public Sex, Lingerie
Warning
Unbeta
VII. Teased
His eyes never left Izuku.
Watching his protégé laugh freely among his friends as they traded stories of their third-year hero study internship, made Toshinori hyper aware of those who stood close to Izuku. Specially, Young Todoroki and Young Bakugou who were currently flanking either side of him within their circle. They all had gathered in the UA assembly hall for the school's annual Halloween festival; and as per the traditions everyone was instructed to come dressed up to match the theme of the day. He could see young Uraraka was dressed as a witch, Iida was Frankenstein's monster, Bakugou a werewolf and Todoroki a vampire. He personally chose to come in a skeleton butler for a pun on his true form (many had appreciated the bad joke – although, Aizawa's mummy cosplay was far better in his opinion).
However, what caught his attention the most was Izuku's costume – a ghost. At an initial glance, it was fairly plain and ordinary. The teen had styled a white sheet into a hooded cape that covered his entire body, with colourful patchwork and accessories. Completely generic and innocent – but, Toshinori knew otherwise. He knew underneath that white sheet Izuku was only wearing thigh high stockings, that were held up by a lace garter belt. The blonde had only found out about his protégé's lack of clothing as they were outside the hall's doors. Completely by chance due to his habit of placing a hand on Izuku's back to guide him to the location.
"Well… you did complain it was a boring event – so I thought I'll spice it up a bit." Izuku had purred impishly when he realised the teen's lack of clothing underneath the costume. They were at a blind spot of the camera's in the hallway; his student must have known about that, for Toshinori watched Izuku lift the flimsy white sheet to expose his bare behind and a base of a green jewelled plug nestled deeply between those freckled cheeks.
Laughing at the strangled noise Toshinori made, Izuku lowered his costume and smiled mischievously at him as he walked towards the door.
Feeling his cock throb when he recalled that particular image, Toshinori clenched his jaw. He couldn't argue with his student – it did make the evening less boring. However, he would have appreciated something less infuriating or distracting. Preferably where he didn't have to constantly adjust his trousers or bite his tongue whenever he saw a student reach out for his protégé. He knew Izuku was aware of his unrelenting gaze, for the teasing little brat had now suddenly developed a habit of dropping wrapped candy on the floor – causing him to bend down to pick it. Toshinori felt his grip tighten around his glass (it was a miracle he hadn't shattered it yet) as eyed the garter lines over his student's plump bottom. Fortunately, the sheet was considerably long; as it only rode up to about mid-thigh; but teased the edge of the stockings and clip of the garter straps. They had agreed to hide their relationship until Izuku became a full-time hero, but this was stretching his rather tenuous control extremely thin.
...Which just snapped right now – seeing young Bakugou place an arm around Izuku's shoulders.
Excusing himself from the teachers' group, Toshinori walked towards the group where his protégé was currently engrossed in a debate with Young Uraraka. It was impressive how nonchalant Izuku was regarding his state of undress.
"Excuse me, but I have to borrow young Midoriya for a moment." Toshinori interrupted, keeping his voice levelled and apologetic. However, Izuku must have caught the sharp look in his eyes as he saw the teen's lip twitch – probably suppressing a pleased smirk (he really was going to make the boy regret this).
Izuku excused himself from the group and Toshinori motioned to follow him. Most of the attendees were already a little tipsy with the alcohol, and they were used to the closeness Izuku and he had; so, none of them would question this behaviour. Toshinori didn't say a word nor look beside him at Izuku as he walked through the dark corridors of UA. Despite the arousal pooling in his stomach and throbbing of his length, he didn't dare to address it until he could assure their privacy. One of the perks of being a teacher was knowing all the blind spots on the campus, especially the lesser-known ones which the staff would use for a smoke break.
The particular spot he was walking towards was the furthest from the assembly hall, which would prevent any teachers who wanted a smoke to stumble across them. However, it was outside and tucked between two buildings – it would have to do.
It was Izuku's fault anyway.
When they arrived at the location, Toshinori finally turned his attention to the teen. The campus garden lights provided enough illumination for him to see the anticipation in the boy's face and frame.
Licking his lips, he commanded lowly gesturing to the banged-up desk tucked to the side, "Bend over. Feet apart and hands on the wall."
Izuku immediately scrambled to position and Toshinori shuddered internally as the teen presented himself. It was one thing to see that ass from a distance, another to have it at arm's reach in front of him.
Leaning down, Toshinori reaches for the hem of the white sheet and slowly lifts it up. Watching Izuku shiver as the cool night's air makes contact with his student's bare warm body. Rucking the cloth around his student's waist, he takes a step back to commit the image into his memory. It was sinfully erotic and he was pretty sure Izuku knew it – for he could hear his student's breathing become heavier with each passing minute. It had been a pleasant surprise when Toshinori found out Izuku's freckles weren't limited to his face. It was always a favourite past time of his to kiss every single one of them after sex, and the one's on the teen's ass were particularly sensitive. There was something about stockings which appealed to Toshinori, and seeing it on Izuku's toned legs only added to aesthetic – don't get him started on that garter belt.
It was about time he invested in some strappy lingerie for his partner.
Gliding his fingers across Izuku's bare ass, noting the appearance of gooseflesh; Toshinori's hands dipped into the cleft between the cheeks. When his fingertips brushed against the buried plug, he heard Izuku let out a pitiful whine – Looking below he could see the teen's erected cock, head wet with pre-cum. Clearly the boy was keyed up as well.
However, his patience was worn out and Toshinori wasn't in a forgiving mood. Unclipping the garter straps from behind Toshinori immediately withdrew his hand and a sharp slap broke the silence, followed by an equally sharp keen.
"Quiet! Do you want us to be found?" He growled as he slapped the other cheek. This time it was muffled as he suspected Izuku was now biting his lip in order to suppress his response.
Toshinori then continued to slap each cheek alternatively, each crack followed with a stifled whimper. Gradually increasing the speed and strength of his strikes, causing Izuku's pitch to climb. There was no count for he wanted to redden that ass as much as possible. He wanted Izuku to feel the burn long after they were done – it was payback for the night's teasing. Toshinori knew the teen had a high pain tolerance, and they did have a safe word just in case. However, seeing how hard his student was; he could tell his boy was enjoying the punishment.
Once he was satisfied by the colour of Izuku's ass (he had to admit, red suited the boy nicely), Toshinori's attention returned to the plug. Tapping it idly, he purred, "You've been terrible this entire evening, my boy… Perhaps I should teach you about good behaviour." He could see Izuku's legs quiver as the teen let out a needy whine.
"Hold your cheeks apart." Toshinori instructed.
Watching the teen spread his now reddened cheeks, exposing the plug properly made Toshinori rock hard in his pants. It wasn't the largest plug he knew Izuku had, but it wasn't the smallest either. It was much smaller than his cock, and from their previous experience in this position; the tip of it's length was a shy away from Izuku's prostate. Toshinori felt a smirk crawl on his face at that knowledge, he was going to make the teen beg.
Raising his hand once more, he brought it down in one sharp movement to slap the base of the plug. As expected, it nearly caused Izuku to lose his footing as the plug jerked inside him causing it to hammer his prostate. Though the strikes were lighter, the added sensation of the plug rubbing the gland inside, quickly reduced Izuku into a blabbering mess – mewling between strikes, sobbing apologies for teasing him and fervently begging Toshinori to fuck him. It was a sinful sight; to see Izuku so debranched and ruined (especially when he was the cause for the boy's current state).
Satisfied with punishing the teen, but mostly due to his own aching need; Toshinori withdrew his hand and went to unzip his pants. The sound of the zipper was loud and he saw Izuku turn around to meet his gaze. He really wanted to suckle on those bitten and bruised lips, unfortunately they didn't have the time to waste. They were already gone for long enough, and it was only a matter of time before anyone began searching for them. Pulling out his equally hard and dripping cock, he reached for the plug.
"Hands on the table." He instructed and the teen complied instantly.
At an excruciatingly slow pace he pulled out the green plug, watching Izuku's rim stretch taut as the silicon toy widened in girth. Clearly the teen had used a lot of lube as he saw some of the clear liquid seep pass the loosened ring of muscle. Placing the plug aside where it wouldn't be knocked over, Toshinori scooped the excess lube onto fingers and slicked up his cock. With his length wet enough, he positioned himself at Izuku's entrance. Tightly gripping his student's hips, he entered in one smooth thrust.
They both stiffened cries at the sensation. As expected, the plug had loosened the teen a bit, but Izuku still remained tight around his cock. Giving a few moments for his protégé to adjust, Toshinori began thrusting at a fast and brutal pace. Finding the correct angle to hit the teen's prostate, he then occasionally slapped the redden cheek – causing Izuku to tighten around him after each slap. Due to the previous teasing and edging, they both didn't last long. Izuku emptied himself on the floor below and Toshinori deep within his student.
Pausing to catch their breath, Toshinori pulled out and Izuku let out a disappointed whine at the emptiness. However, it was cut short when Toshinori slid the plug back inside. Pulling out a handkerchief (he always had one – coughing out blood regularly required napkins on hand), he wiped both of them down.
"Now be a good boy and keep all that cum inside you." He crooned and Izuku's eyes fluttered with arousal as he let out a soft whimper.
Toshinori smirked as he tucked himself back into his pants. He was going to enjoy watching the boy fidget for the rest of the evening. They still had a couple more hours to go, not to mention there was sit down dinner and speeches (seriously who did speeches during a Halloween party? It didn't matter now, because he would be entertained by Izuku's squirming in his seat).
It really was an interesting night after all.
A/N: Once more got inspired by some lovely fanart of Deku in the pinup doll style. Wanted to have some plot in the smutty ficlet, but gave up and admitted defeat (I am a degenerate).
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