Something besides oral sex to get him going.

So this might be tmi but my husband and I usually do quite a bit of oral sex before actual intercourse. We both enjoy it a lot. He especially likes to go down on me and I feel like he could do that all day. Anyways I read that saliva can kill sperm so I’m trying to think of things to do besides oral sex. I mean...besides a handjob. 😂 I told him about the saliva killing sperm and his poor face just sank. I don’t want to be a total buzzkill with TTC that it’s not even fun. Ideas?