Donna Troy and Dick Grayson had been teammates and friends since they were kids. They had been through countless adventures together, fighting villains and saving the world.

It was late, and the two of them were hanging out in the Titans' tower. Donna was in the common room, slumped on the sofa, tired. Dick walked in, wearing his teasingly tight Nightwing costume as ever. He leaned against the wall, watching her. She looked up at him, her breasts heaving in own black costume.

"You're getting slower," he teased, with a smirk.

Donna turned to him, an eyebrow raised. "And you're getting distracting," she replied, with a playful tone.

Dick laughed and walked over to her. "I can't help it if I'm irresistible," he said, with a wink.

Donna rolled her eyes, but couldn't help but smile. She got to her feet and turned to face him. "You're such an asshole," she said, with a laugh.

Dick took a step closer to her, his eyes locked on hers. "And you love it," he said, his voice low.

Donna's heart skipped a beat. She could feel the heat radiating off of him, and she couldn't deny the attraction she felt towards him. They weren't children anymore. Fuck it. She reached out and grabbed his ass, giving it a squeeze.

Dick's eyes widened in surprise, but he didn't move. "Well, well, well," he said, with a grin. "Someone's feeling frisky."

Before he knew it, Donna had him tied up in her lasso, a mischievous grin on her face.

"I've got you now, Grayson," she said, her voice husky with excitement.

Dick couldn't help but laugh. "Looks like you do, Troy. But what are you going to do with me now?"

Donna hesitated for a moment, her mind racing with possibilities. She had occasionally fantasized about being with Dick, but she never thought it would actually happen. But now that he was tied up and at her mercy, she couldn't resist.

She leaned in close, her lips brushing against his ear. "I think you know what I want to do with you," she whispered.

Dick let out a moan as he felt Donna press her body against his hardness. She ran her fingers through his hair, pulling gently as she kissed him deeply. She could feel the heat building between them, and she knew she couldn't resist much longer.

She reached down to wrap the lasso around both of them, tying them together in a loose knot. She didn't want to completely restrict their movement, but she wanted to feel connected to him in some way.

Dick couldn't believe how turned on he was. He had never felt this way about Donna before, but now that they were tied together, he couldn't deny his attraction to her. He reached down to brush his hands against her tight ass, and then slipped his right hand round to her crotch, his fingers brushing against her wetness.

Donna let out a moan as Dick's fingers unfastened her silver belt and slipped inside the waistband of her pants. She gasped as he found her clit. She let her head fall back, her dark hair brushing against Dick's face as he continued to tease her.

Dick couldn't resist the temptation any longer. He needed to feel her skin against his. He tore her costume from her body, revealing her fit athletic frame with beautifully toned muscles and stomach. He reached down to pull off her underwear, throwing it to the side. He grabbed her ass, digging his nails into the soft flesh of her buttocks, pulling her closer as he entered her.

Donna let out a moan as Dick filled her. She wrapped her legs around his waist, pulling him deeper inside her. She could feel every inch of him, and she never wanted it to end.

Dick began to thrust harder, his hips slapping against Donna's ass. He reached up to grab her hair, pulling gently as he kissed her neck. He could feel her body tensing up, and he knew she was close.

Donna couldn't believe how good it felt. She had never been with anyone who knew her body as well as Dick did. She could feel herself getting close, and she didn't want to hold back.

"Don't stop," she gasped, her fingers digging into Dick's back.

Dick continued to thrust harder and harder. He could feel her getting closer, and he wanted to push her over the edge. He reached down to spank her, the sound echoing through the room.

Donna let out a scream as she came, her body shaking with pleasure. Dick continued to thrust, his own orgasm building up inside him. He let out a groan as he came, his seed filling Donna up.

They stood there, tied together and panting heavily. Donna couldn't believe what had just happened, but she knew she wanted more. She looked at Dick, a wicked grin on her face.

"I think we need to do that again," she said.

Dick laughed, his arms still wrapped around Donna's waist. "I think you're right, Troy. I think you're right."

As they stood there, still tied together and basking in the afterglow of their lovemaking, they knew that this was the start of something new and exciting. They had finally given in to their desires, and they knew they would never look back.