For those wanting spoilers, I just finished it and: yup, the 'plot' is just sex as you may have imagined lmao. It's very short and every chapter is just heavy smut with no emotions nor plot ouside sex whatsoever. Interesting concept (intersex, although it's just a kink here + poly) but you're only gonna find it good if you're just here for the sex
?? It's not locked for me, here is the link: https://18.foxaholic.com/novel/hole-bride/

Wow this novel got manhwa adapted omg, bless me