Ryu- This is for The 14. I'm going to guess your OC is male judging by the name.
Bombs or Books
Gokudera was currently in a depression, well, his normal sort of depression. He didn't know where his Tenth was, so this made him sad.
This is what Matsuo inferred from his past knowledge and by just looking at Gokudera.
"Why don't you just forget about Vongola-dono for now." Matsuo said.
"How can I forget about Tenth!" Gokudera said as he began banging his head against the wall.
"You lose braincells by doing that." Matsuo said. Gokudera didn't seem to hear. "How about you do an activity." Matsuo said, this stopped Gokudera.
"How does that help?" Gokudera said.
"Well, when a person does an activity, they need to use their mind, therefore they can't be able to think about another thing." Matsuo said.
"I still will think about Tenth." Gokudera said.
"Hm, maybe it needs to require great concentration." Matsuo said.
"What would require great-" Gokudera said before he was cut off by a kiss. Gokudera moved back quickly. "What the hell was that for!" Gokudera shouted.
"The kiss is what starts off sex. Sex requires great concentration because the Seme needs to find certain areas to give the best pleasure. The Uke also needs concentration, such as trying to keep the pleasure for as long as possible." Matsuo said.
"No way am I doing that." Gokudera said.
"They say people are afraid of new things." Matsuo said as he closed in.
Gokudera had no chance as Matsuo used his superior knowledge and restrained Gokudera. Then Matsuo proceeded in stripping both himself and Gokudera. After stripping, Matsuo positioned himself and took out a bottle of hand lotion.
"Why do you have lotion?!" Gokudera shouted.
"The hands tell a lot about a person, so I always keep my hands smooth. Lotion can act as a good lubricant." Matsuo said as he pour some of the lotion onto his hand and spread it onto his length. "Oh, and before I forget." Matsuo said as he inserted two fingers into Gokudera, after using two fingers, he moved to three and was done.
Then Matsuo entered Gokudera, earning a low moan. When Matsuo began increasing his pace, he began earning more moans, which got louder and louder until they reached their limit, spilling their seed.
"So, did you even think once about Vongola-dono?" Matsuo said, Gokudera stayed silent.
