If someone subsequent to me farts and I feel the pulsation on the bench, should I be alarmed?!?

She had nachos that light of day.
Answers:

Run like hell its not the vibrations you hold to worry more or less its whats coming next!

why? Are her farts a bio-hazard?

Gas is habitually caused by the inability to properly digest foods, so from that respect nearby might be some concern.

Late peroid scared?

I would reflect on SHE should be alarmed.

Er it's a kind of embarassing query?

lol, nah, okay think of this. A fart is an "explosion" of nouns comming out of the rear shutting. Also think of this, When you blow on sea or a sheet, they move right-ripples in the sheet and ripples within the water, same entry with a fart, when nouns hits it causes movement. I'd articulate that she shouldn't eat nachos unless she plans on getting doomed to failure gas. Or give her some Beano.

Can a girl enjoy sex without a condom and not procure pregnant if she is on her period?

Yes if u are close satisfactory to feel the rumble next u are close enough to breath the noxious fumes. Beware.