Hers obviously

Your cock flops free, revealing a fully hard skinny 6 inches, slightly larger than average. Anna giggles through the kiss though, mockingly praising “why don’t you have a cute little cock. Guess you’ll be getting to know mine very well...”

She lowers your head to her skirt, and you now know why. Hers was easily twice your size, large enough that hard it’s moved her school girl skirt. She doesn’t seem to want to give you any time to doubt your actions as her hand lowers your head to kiss the tip.

Maybe it’s her guidance, the alcohol, or your friend doing it first, but you don’t resist, and start sucking on her tip. It tastes good, a mix of flesh, salty, and somehow sweet. She praises you, slowly pushing you further and further down. When she reaches your throat, it triggers your gagging reflex. You reflexively try to pull away, but her Hans stay firm, not letting you up till you learn.

“Breath through your nose, that’s it... I’ll have you trained to be a good little cock sucker in no time...” she coos as she continues to guide you, letting you up little bits at a time only to further and further down.