well here's your answer: 21 calories

Maybe if it's quick and boring haha

If you aren't sweaty, tired, and out of breath afterward you're doing it wrong.

If you aren't sweaty, tired, and out of breath afterward you're doing it wrong.

THIS! dont forget about the ropeburn either

Was this study conducted by female missionaries?

:laugh:

That's per minute, right?

Maybe if it's quick and boring haha

Seriously. If you do it right, you can get a whole body workout.

Squats
Pushups
Crunches
Planks

I'm sure anyone who has sex longer then 15 minutes can improvise.

is that for the whole thing? or just the tip?

^^ For reals!
21 calories burnt means you are doing it wrong! :noway:

^^^^^^^^^ i see what you did there

All I gotta say is I burn at least that many calories initiating the act. and twice that many in just fore play. so THIS IS NOT RIGHT lol

Are those "net" calories as well?