GS-276 - My sister made me drink an aphrodisiac and observed my erect penis! Hot summer! I drank the drink given to me in one gulp, not knowing that it was my sister's trick!

I drank the drink my sister handed me without knowing it was a trick...and it actually contained an aphrodisiac! ? My younger sister observes my fully erect dick while I'm fast asleep! My sister can't stand it just by watching and starts giving blowjobs! I was pretending to be asleep, but I couldn't hold back and ejaculated a lot! My sister is in heat because of the dick that still doesn't subside! In order to satisfy my desire, I treat my cock like a vibrator and fuck it and cum!