Her first blow job.

“Yeah?” you ask eagerly, wondering what it is she’s offering.

“Lie back and I can suck it for you,” Rebecca tells you. Your cock springing at the thought of her sucking it.

“Ok,” you nod even more eagerly, happily taking up most of the sofa as you stretch out on your back for her.

Rebecca moves to give you room and then disappears her head under the blanket. You help her by removing your pants further down your legs until they’re just around your knees. You lie almost giddy with anticipation as Rebecca wraps her hand around your shaft and then leans in. You feel her hot breath around your legs as she wraps her lips around the tip of your cock and gives it an experimental suck.

It feels every bit as good as you always imagined it would be. Rebecca begins to slide more of your cock inside her mouth, sucking it as she moves her lips along the length, her tongue flicking around the underside of the head as she comes up each time. She has you moaning in no time at all as she blows you. When she spreads her lips out wide and dives her head down even further than before you can’t help but jolt your hips, forcing some more of your hard cock down her throat.

Rebecca stops sucking your cock at this and her head appears from under the blanket down by your waist.

“Are you ok? Am I doing this right?” she asks, honestly worried that she is giving a substandard performance.

“Yes! You are doing such an amazing job. It feels incredible,” you tell her, raving about how good it feels.

Rebecca’s face lights up at the praise, impressed no end with herself, “what me to keep going?”

“Oh God yes! Please don’t stop.”

Rebecca giggles as she once again disappears under the cover. This time she gets right down to work, slobbering three-quarters of the way down you raging hard-on. You hear her giggle a couple of times when she takes too much of you in her mouth at once before she works out to wrap her fingers around the base of your cock at her lowest comfortable point. It's then that she goes to work with abandon in an uninterrupted string of frenetic head bobs.

The feeling is just too great and you are a little bit embarrassed when you start to cum in what you think is a little bit of a shorter amount of time. Rebecca’s dick sucking is just too damn good for such a wound-up horny teenager such as yourself. You let fly with your cum into Rebecca’s mouth and hear a shriek from under the blanket as she is surprised by the unexpected arrival of shooting strings of cum in her mouth. She pulls her head away briefly but quickly closes her mouth back over your firing cock when she realises that pulling away doesn’t stop it. You fill her mouth twice in a ginormous load of cum that she has to swallow or risk spilling it all over the couch.

Cumming up for air for the last time you see a shocked Rebecca with streaks of your cum over one of her cheeks as well as her nose and dribbling out of her mouth.

“Shit I didn’t know it did it like that without warning,” she says to you at being caught unaware at your orgasm.

“Sorry I should have warned you,” you apologise at being so caught up in how good it felt getting sucked off by Rebecca.

“That’s alright. Just warn me next time ok?”

“There’s going to be a next time?” you ask.

“Yeah, of course. I am your girlfriend, now aren’t I?”