Can I put it in?

You don't know why you asked, you don't know why you thought it was ok to ask, this was definitely a sin. This was a line you weren't sure she was ready to cross but in this moment you needed release and you wanted to feel her body.

"Wow," she said seemingly taken aback at your forwardness.

"I-" you began.

"OK," she said, "put it in, just go slow."

You pressed your tip to her and slowly her vagina enveloped it.

"Ok," she moaned, "keep going slow, I'm not even sure it will all fit."

You pressed in further relishing the feel of her tight, wet, vagina around your cock.

"More," she whimpered, "I can take it all."

You took her word for it and pressed the rest of your cock into Iris who tensed for a moment before pulling you into her for a kiss.

"I feel so full," she whimpered.

"You feel amazing," you replied taking one of her nipples into your mouth.

You pulled back a little before plunging back in drawing a moan from Iris. Each thrust felt amazing and you weren't sure how long you were going to be able to keep this up. That thought in mind there was one thing you wanted to try, you pulled back to your tip and thrust your whole cock in drawing a squeal from Iris.

"Bad?" you asked.

"More," she pleaded, "keep going."

You happily obliged giving her a few long hard thrusts before the sensation got to be too much for you and you felt your cock spurt into Iris.

"You know," she said after a moment, "when I started taking the pill I was hoping a guy would do this to me, I just didn't think it would be so soon."

"You liked it?" you asked.

"I did," she said with a smile, "especially feeling your cock pump into me at the end."

For the rest of the trip neither of you felt like putting on your clothes much, Iris suggested different positions to try but every time ended with her begging you to unload inside of her. Sooner than you realized the train was pulling into San Diego. As you helped her out onto the platform she turned and pulled you in for one last lingering kiss.

"Call me," she said, I'll be in town for a while.

"I don't have a cellphone," you said a little sheepishly.

She pulled a napkin from her purse and wrote her number on it before shoving it into your pocket.

"Call me," she repeated rubbing her hand on your groin, "I'm not done with you yet."

A while later you'd found the shuttle and the bus brought you onto campus.