Alex needs to go out.

Alex rolls over, eying your curves. "That was a wonderful way to wake up. I'd love to return the favour, but I need to go out for a bit. I'll only be an hour, I just need to get some...things. You're welcome to come with me, or you can stay here and make yourself at home."

He gets out of the bed, and crosses to the dresser. He pulls out a long t-shirt and throws it to you. "If you decide to stay, you can wear this. Save having to wear your dirty clothes."

You think. If you go out, you get to spend more time with Alex and who knows what you might be able to get up to in public. But if you stay here, you don't have to get out of bed, and you can finish what you've started.