dude how do you have sex with her there are no options other then blowjob and titjob and when shes on her back there is not other options other then turn over and pat i am on android if that helps
If he has options for blowjob and titjob - it means he has bought a dick upgrade, the problem lies elsewhere, he didn't spread her legs or shift her in a doggy position
When she's laying on her back, simply fully undress (you'll have to move away the arms), then shift legs to the sides for missionary position
Or
Raise arms above her head, click waist, shift legs for doggy position