She held me in.

Kacey didn't even give me an option, wrapping her legs around my waist, pulling me in for a kiss. "Cum in me," she said into my ear. Even as she said that, I felt my balls pickup, my cock stiffen and I drove it deep, kissing her cervix with my glans.

And I erupted, the first rope of warm sticky fertile cum splashing against her cervix, glazing the girl's insides in my fertile load. I was still young enough that first rope was followed by several more as I empty my balls in Kacey, bathing her inside in my baby makers. I've pinned her to the desk, but she's held me down and as my cock begins relaxing, gentle twitches squirting the last of my fertile load into her, I lean forward, pressing my forehead against hers, breathing hard.

"Kacey," I say, "That was both incredibly erotic, and incredibly dumb. There's no safe time of the month, and my sperm are as dangerous as any guy's, I hope you have Plan B handy, because you need to take it, today."

Kacey looked down at her pussy, before looking up at me. "Promise coach."