Idea
lilith the sucubus queen
so my idea is after taming the first set of girls lilith could show up and be a power house she would pretend to get tamed by the mc to then teleport her on the bottom as lillith starts ramming against her and says
hows it feel to be the bitch huh
with a smug smile she then asks you know that cumcoctions fake it dont even work [this is mainly because she dont know that its real and because stuff like this wont work on a demon as high of a level as her]
she would then after crushing our mc and making her pass out
lick our mc's cock untill she woke up and then ask hmmmm i like you how about i give you true power over that potion you made something that could truely give you control and even tempt girls to attack you
shes talking about the sucubus mark
after this interaction she would show up every night in our bed to go for a round up to 10 times afterwards the marking would be full power and she will wait at a near by shed ^_^
for you to meet her
and use her
this could open up some play with the shed screens maybe while your using the sucubus the other futa would come by and see you two going at it at which point if becomes a 4 some