As the title implies, it would make sense for the HL anti-grav thong to accept the HL strap-on upgrades.
Doing so would also free up an inventory slot for those that want to always be able to do most(if not all) scenes while getting the +4 sexiness bonus from the thong for tease attacks.
Doing so would also free up an inventory slot for those that want to always be able to do most(if not all) scenes while getting the +4 sexiness bonus from the thong for tease attacks.