You took her anyway

"Sooo," you held still while looking into her eyes, "what do you want me to do now? Stop completely?"
She shook her head, "No, I like what you're doing, just don't go any further. Can I make you enjoy it more?"
"Sure," you said with a grin, "caress my back or something."
She nodded and you started to rub her clit again, enticing a longing moan from her. She moved her hand onto your back and began to caress you, she traced with her fingertips of her other hand over your chest to your stomach and back. You let out a sigh of delight and briefly pressed the tip of your cock harder against her panties. She quivered with a moan. You moved your thumb in wider circles over her pubis until you reached the side of her panties, then slipped your thumb under it and dragged her panties aside while you moved your thumb between her folds, then searched for her nub with your now moist thumb. She moaned as you rubbed it. The tip of your cock resting against her now exposed damp folds. You alternated your pace, enticing more moans from her. Suddenly you paused and bent forward to kiss her. She kissed you back and you pressed your tongue against her lips. Slowly she parted them and you began to circle her tongue slowly with the tip of yours. At the same time you pressed your cock between her folds and held it there. Your thumb resumed the rubbing of her clit. She moaned in the kiss and pressed her fingertips on your back.

You slowly withdrew your tongue and broke the kiss to look into her eyes. She panted heavily while looking longingly into your eyes. You smiled at her, then you kissed her again, pressing your cock a tiny bit more into her opening. She moaned and jerked her hips up a little, causing your tip to slip into her a little further. You moaned in the kiss. As her hips fell back you pressed again, conquering a little more of her entrance. Your thumb pressed on her clit, making her moan while your tongue moved over hers. You broke the kiss and started to kiss down over her neck. She arched her back and again you pressed a little further into her, stretching her opening with most of your glans still outside. You slowly withdrew until your tip rested against her folds while continuing to kiss her neck. She gasped then moaned longingly pressing her fingertips onto the skin of your back.

You took a deep breath and grabbed your cock, while you kissed down to her breasts. You dragged the tip up and down against her folds. She moaned and spread her legs, then shook her head.
"Stop," she moaned.
You shook your head, "Don't worry, Lisa, you'll be fine." and pressed the tip of your cock harder between her folds while dragging it up and down. Each time you moved over her entrance you dipped a little into her, causing her to moan.
"But... you can't," she tried to protest.
"It really is okay," you said while bringing your lips closer to hers and slipped half your glans into her.
She jerked her hips up against your cock with a longing moan. Now almost all of your glans had disappeared inside her and her pussy tightened briefly.
You withdrew very slowly while whispering, "Do you want me to stop?" You pressed a little against her entrance while brushing your lips over her cheek.
"Damn, no, don't stop, I want to feel you," she moaned, almost lost in lust, "but withdraw in time."
You slowly thrust into her, while seeking her lips. You kissed her deeply as you conquered her pussy. She moaned loud in the kiss as you bottomed out inside her. Then you started to build up a slow pace of thrusts. The pace increasing when she began to rock her hips. You both moaned in the kiss. You withdrew your cock until you only plunged shallowly into her. She wrapped her legs around your hips and pulled you into her. You thrust hard and fast in and out of her, until you felt the first pulsations in your cock. You slowed down and rubbed her clit feverishly. You felt her tighten and relax on your shaft. You broke the kiss and whispered in her ear, "Come for me, Lisa."

"Oh yes! Come..." she moaned while rocking her hips against your cock and thumb. Her pussy began to spasm on your cock and you thrust deep inside her. The waves of tightening made your cock throb. As she arched her back and began to shudder, you gave a few deep thrusts, then moaned loud as globs of hot cum jetted into her. You kept on thrusting until she came down from her climax, then pulled out and jacked off above her belly, squeezing out the last few drops and moaning loud.

You dropped onto the bed on your side, laying your sticky cock against her thigh. The bed was barely enough for two like this, but you managed. You wrapped an arm over her belly avoiding the few drops of cum and whispered in her ear, "God, that was good!"
She nodded and took a moment to catch her breath, "Yes, you were great, John."
You lazily caressed her breast and kissed her cheek, then whispered, "You're the first I fucked bare, you felt incredible."
She moaned and nodded, then whispered, "Yeah, it did feel very good."
You pushed yourself up and climbed off the bed, "I've got to clean my sticky cock." And grabbed a towel from the wardrobe, wrapped it around your waist, then grabbed another and dropped in on the bed next to her. "To wipe off my cum. Be right back." You said and headed out of your room to the communal bathrooms.

As you returned she stood next to the bed with the towel between her legs and looked angry at you, "You came inside me!"
You shrugged, "Yes, you told me to come."
"No, I didn't," she said shaking her head while trying to wipe the cum from her pussy.
You rolled your eyes, "Right after I asked you to come for me."
She shook her head, "No, that was a confirmation. Damn, you bastard!"
You placed a hand on her shoulder and leaned in to kiss her, but she pushed you away. "Look, I'm sorry that I misunderstood, but it's not a disaster. Sheesh, lots of women try to get pregnant and don't, so don't worry. Okay?" you said without caring.
She groaned, "Don't tell me that I shouldn't worry. It's my body, my life, my future!"
"Whatever. I'll be more careful next time," you offered.
She finished wiping herself and threw the towel at you, "There won't be a next time."
She dressed herself in silence while you watched her, trying not to grin. She grabbed her bag and headed for the door.
"See you in class, Lisa," you said while throwing the towel into a corner with other laundry.
She slammed the door shut behind her without replying.