How do you ask a friend to join in mutual masturbation?
Say something like: "If you let me touch yours, I'll let you touch mine."
It helps if you're both naked at the time.
And make sure there is a reasonable certainty that your friend wants to join in, otherwise you may lose a friend.
Naked body play for men
Indulge yourself with hours of body to body erotic massage and nude slide - wet or slick or both - foreplay, touching, sex talk, aural, wrestling, role play, nudity, cuddling, laughter, groping, watching, stroking and a whole lot more.

