@ shy
Heck; Everyone regardless of sexuality should frot.
All the sensitive parts of the sexy bits are on the outside, anyway. "P in V" Heterosex isn't necessary at all. No birth control? Need spontaneity? Guy has ED? Gal has Vaginismus? NO PROBLEMO!
Thebans frot. Lesbians scissor/tribad. Heteros could learn from the former.
I just use "Frot" as an all-purpose phrase regardless of the sex, gender and orientation of the folk involved. It's short, sweet and succinct. "Frot-Sex/Frot-Fuck/Frot-Hump" rolls off the tongue well.
There's nude-frot and clothed-frot. Nude frot can replace intercourse.
Butt-stuff can involve fingers, vibrators, etc. There's also this where the "top" frots/rubs his rod along the buttcrack/anus without penetrating. Then there's humping between the upper-thighs.
In an age where idiots want to restrict contraception, abortion or whatever....the sexually-free can have a work-around! WE need to ditch the fallacy that Intercourse is the only "real sex". So much could be remedied by this. Stuff like "Impotence", "G.G. Allin Micropenis of stupid" or "Jonah Falcon Monstercock of horror" in guys will no longer be a factor in a guy's sense of "manliness" or ability to "perform".
Saran-wrap, a cut-open latex glove or an oral dam can be used if there's stuff like Herpes/Genital Warts involved (and/or to make extra sure the semen doesn't trickle into the vag-area).
I HATE the term "Dry-Hump". Sex and genitals should never be associated with the word "DRY"....*BLEHHH*.