[Grey flushes, and props himself up on an elbow. He's not able to loom very high above thanks to the grip Manabu has on his waist, twitchy though it may be, but it gives him a better look at Manabu's expression.]

I know. I'm not concerned about getting you pregnant, obviously, but the condoms are- useful for making things tidier, and...

[Grey trails off, squinting down at Manabu like he can maybe psychically bypass the need to communicate if he tries hard enough. He can't, so he finally asks:]

-How much do you know about how men have sex?