Put her costume's boob window to good use

Your eyes drift down her body, your eyes drawn to the gap in her costume's chest. You bring your hand up, starting from the bottom of her neck you drag your fingers down across her smooth exposed skin. "Your body is amazing, curvy and full in all the right places. You must love showing your body of if this much is exposed." You drag your fingers into her cleavage as you feel both of her large and perky breasts rub against it. She shudders at the touch.

Momo "It's for my creation quirk, it's easier to grab items I make with a window in my clothes." She explains as his hands cop both of her breasts making her gasp.

You lean forward and whisper in her ear "Sure, sure that's what you say but I think you like it. I think the rich sheltered girl was **** to live a life of reserved politeness by your parents but deep down you must have some spicy fantasies. I know I do. Momo, make me a few roll of duct tape, I want to see your quirk in action."

She snaps herself back to reality and focuses. She already knows how to make this in case she needs to restrain criminals. She effortlessly makes something this small as you see the blue and pink light as the rolls of tape comes out of the skin of her breast cleavage. You catch them as they fall out. Putting the remainder on the bed you examine one of the rolls. "Wow, if I hadn't seen it come out of you I'd think you got this from a hardware store." You enroll part of it and walk behind her. "Let's see if it works the same. Wrists together now." She obeys and you wrap the tape around her hands rendering them useless as they are bound in the makeshift mitt's. "Good girl, you know if you stay this obedient we are going to get along just fine." You also **** her elbows together and bind them with tape as well. With her arms tied you hug her from behind. Her face is red in embarrassment. You fondle her breasts, feeling her hard nipples through the fabric before undoing the clasp on her neck line and puling it open revealing her breasts. You squeeze her nipples gently between your fingers. "Or maybe this was your fantasy to begin with? Imagining some criminal getting the drop on you and having his way with your body?"

"N-no I would never imagine something like that." she stammers out. You get a wicked idea. "How about we play a game? It's a simple one. I ask a question and you answer. I think your telling the truth and I reward you. But if I think you're lying or holding back I will punish you. Do you agree?"

Momo thinks it over "Yes Master, I agree." with a smile you gently push her onto the bed as she lands on her stomach. You start the game "Let's start with something simple. Was I your first kiss?"

"No sir, I have kissed other boys before." You think she's honest. You slowly strip her boots and belt off leaving her in just the leotard. After undressing her you get started on yourself, unbuttoning and removing your shirt and removing your belt.

Ritsu "Has anyone ever grabbed your breasts like me?" She hesitates "No...gah!" She yelps as you give her pert bum a spank. "Now now, I don't think that was true." She blushes "Alright! Once at one of the parties my father has for his business partners one of them got drunk and groped me. Luckily one of the other guests caught him and he was punished."

Ritsu "That must have made you angry, you must have wanted to punch him in the face right?" Momo "Yes. I did but I couldn't risk hurting father's image or position by attacking a guest." You gently flip her onto her back and as she looks you in the eye and you see her chest rising from her quickened breath and the warmth on her face. You lean over pressing a bit of your weight into her. "Well if he dares try doing that again I'll punch him for you." You kiss her on the lips again. She returns it as her eyes close. Your tongue invades her mouth as hers dances around it. After a few minutes of swapping spit you pull back. "Tell me, do you like it when I grab them?" She blushes and looks away not wanting to answer. You cup her face and turn it back to face you and look her in the eyes. She finally speaks. "Yes, I do."

You whisper "That's the right answer." And lean forward. She closes her eyes ready to return the kiss but feels his weight disappear. Opening her eyes she sees you got off the bed. You open up her night stand and pull out a bottle of translucent pink liquid. Momo "What is that?"

You smile. "This is a little something I got from one of my contacts. It's an new type of lube made with a compound from someone's quirk." He walks back over and holding the bottle over her squeezes some out onto her exposed breasts. She gasps at the initial coldness. You massage the lube across her breasts giving them a light pink tint. Her breasts feel good from the oil but soon start feeling warm as your touch feels better and better. Momo bites her lower lip to stop from making more noise. You have a devilish grin as you explain "It also has the added effect of making whatever it's on much, much more sensitive. You pinch her nipples as a pleasured yell escapes her lips.

Momo is panting now as her breasts are as sensitive as her pussy. You can't help but admire your victory, you no have a proud hero reduced to your sex **** wanting more and it's only your first night. You have rolls of duct tape, the aphrodisiac lube and other toys and gear already in the room.