Mirrorbating
Jerking off to your own ass in the mirror.
Dude, one time I was mirrorbating and I busted a nut all over my towels.
What are you doing tonight? Probably just mirrorbating.
What are you doing tonight? Probably just mirrorbating.
mirrorbation
Master bating to your reflection in the mirror
Cameron loves mirrorbation, he pretty much does it every night