How do I have sex?

So my boyfriend is coming to visit my hometown during the break. We have been dating for a while so I thought I would introduce him to my family. We are in uni together but we're from different cities.

Anyways, being in an asian household we grew up in a very strict environment. I have talked to my mother about this and she's fine with him coming over. But, I cannot sleep in the same room with him. He would stay in the guest room and I would still sleep in mine.

I'm just wondering how I can have sex or do things with him. Thoughts?

It's going to be about a month ish