You do you!
Male common marmosets, at least in captivity, have been known to suck their own dicks when they are unable to mate in their social group.
Next time, buddy, next time.
Giorgio Quattrone / Creative Commons / Via Flickr: gio71
Smaller male marine iguanas will often masturbate before mating with a female so they can ejaculate faster, as they are often pushed away by larger males before they finish.
“Not today, larger males, not today…”
Rodrigo Buendia / AFP / Getty Images
It is not unheard of for a female orangutan to initiate sex with a male by creepin’ up on him and masturbating near him.
Guillaume Souvant / AFP / Getty Images
Also, both male and female orangutans use leaves and twigs to help them stimulate their private bits.
“Well I guess I know what I'm doing tonight…”
Daniel Hermanns / Via Flickr: danielhermanns