Str8 fun play - in the tub

Alright, alright, tell me, tell me why you fell on the toilet and in the bathtub.

Dude, I was peeing, I fucking tried peeing in the bathtub.

Keep going.

I tried peeing in the toilet, but, whatever, I went in the bathtub and I pissed in the bathtub.

Keep going, why is pissing in the bathtub a big deal?