Lets hit lvl 5 first Mommy is a dom and is not funny to bully the weak. I don't know i feel that if we fuck nico she is gonna go all diva like you were just a quick fuck nothing more. Then go crazy girlfriend when we Plow other fields so yeah. I know that we are way pass of don't put your dick in crazy but she is on my list of warning volatile crazy bitch XD
What's wrong with some Dommy Mommy fun? Besides, even at Level 5, the 4th would still be vastly above us. To be honest, I wouldn't mind some reverse rape scenes with MC. I believe FMC has some but MC doesn't.
As for Nico, we'll see how she takes a massive girthy cock. She definitely looks like she'll be possessive afterwards though, if we seduce her successfully. Her being able to teleport would be a serious pain for the MC. She definitely ain't just going to let us have an orgy with the rest of the harem. Or a Harem in the first place.
Though, a potential benefit would be her making a small ring for us that allows limited teleportation to places she's programmed it to. I know she only has 6 rings but that doesn't mean she can't create a 7th, much smaller, one with some basic teleportation power. Lexi, for example, couldn't form a Iron Disk for flying when she first evolved but overtime she unlocked that ability. Same with Ella and her new changeless ability.