This happened recently. I was over at my girlfriend's place, kicking it, my girlfriend took off to get something to eat, & then her niece came home. Kristin (the niece) is a hot 16 year old with super nice big happy titties, & a ass to die for & she's a VAMP bigtime. Anyway she comes walking in & bends over to pick something up & I notice her thong creeping out of her shorts, riding up against her butt. She turns to me (her butt still pointed in my direction) & tells me she's got to take a shower cause she's all stinky from walking home from work, my cock begins to stir. For some reason or another she looks right at my crotch & notices my quickly hardening cock. Then she asks me if I think her butt is too big, (still turned around with her butt right there in front of me, wagging it around like she has a tail)... 'No' I reply, 'it's perfect'. She then turns around, stands up & pulls her thong up on the sides obviously wedging it against her pussy & up her butt (& she smiles as she does this) 'Nice panties', I tell her.
She says 'thanks Jon, I bet you'd like to sniff em huh you perv'.... With that she runs up stairs & I hear the shower start. To make a not so long story shorter, I go upstairs after I see her walk to her room with a towel wrapped around her & into the bathroom. On the floor of the bathroom I see the shorts she was wearing & sure enough her thong panties in a pile on the floor. I pick the panties out & up from the shorts & look at them, they've got a little angel on them & the angel has horns & is holding a pitchfork... I unravel the panties & look at the crotch, sure enough, a nice white coating of Kristin's girlie goo inside, I hold the crotch to my nose, ...... heaven. Sitting on the toilet I then release my rock hard dick & sniff & lick her panties 'til I blow a huge spurting load all over myself, & then I take my own shower.