dry sex
masturbation sex where one or both of the partners are still clothed between the belly & the crotch, dry humping takes place, and one or both have an orgasm but there is no exchange of body fluids because of the layer of clothing. Called "dry" because there is no natural lubrication.
Example:
Nancii and I have dry sex during her period.
Nancii and I have dry sex during her period.