Sexual activity that usually does not include sexual penetration.
1
The two spent night after night together, enjoying intercrural intercourse and sometimes mutual masturbation.
2
Neither of these cousins was homosexual, and there was no attempt at mutual masturbation.
3
Set up sexy Skype date nights with your partner and participate in mutual masturbation together.
4
He was twice set upon by Catholics when 16, who attempted mutual masturbation.)
5
We always finished up with mutual masturbation.