starting sex helpppp

so.... my husband and I have been together for 11 years. have a 4 yr old son and 3 month old daughter. I literally have zero sex drive, especially since my 3 mo old was born, sex? what's sex? we have only had sex 4 times since she was born, and I did not ask for it, he did. but, tonight I really want to surprise him and start it (if i can ever get these kids to go to sleep) but ladies I've been reading some of your storied y'all wild af. what are some things I can do to blow his mind. this momma needs to knock the dust off her lady parts.