Insist on a condom

You reach down for his cock at the same time he thrusts, redirecting it so that it just slides between your labia and over your clit. You moan and arch your back, but your orgasm is still dangling just inches from your reach.

"C-condom," you gasp.

"Oh shit, yeah, sorry!" He picks up a condom that's lying on the bed beside him. You don't recognise the wrapper as one of your own, so he must've pulled it out of his pocket before he took his trousers off.

You're hesitant. A voice in the back of your mind says that you definitely shouldn't put all your faith into his condoms, that you should make him use one of yours so you can rest assured that they're safe.

You reach over to your bedside cabinet and pull a condom from the drawer. "Here, use this one," you tell him.

Looking back, you see he's already unwrapped his own condom and started rolling it over the tip of his dick. "Aww c'mon," he whines, "I already opened this one! We don't want it going to waste; these things are expensive!"