Please pass them over

Blossoms of the White Night
So, who got screwed?
A room without windows
In search of the perfect fourth
Driver's high

honey bear

A studio apartment will suffice

I can only think of this one:
Botton took seme's v card
https://www.mangago.me/read-manga/romantic_captain_darling/


But if you want bitchy bottons:

Fantasy. My favorite. Both have plenty of experience but botton is older and has a lot more experience
https://www.mangago.me/read-manga/the_secluded_sorcerer_wants_a_peaceful_life/

Fantasy. Botton goes for everyone so not a couple yet. Also not sure if ever.
https://www.mangago.me/read-manga/the_dungeon_raid_is_just_a_side_quest/

Fantasy. Top is technicaly a virgin undead
https://www.mangago.me/read-manga/knight_of_the_red_curse/

Omegaverse. Omega botton starts as a prostitute
https://www.mangago.me/read-manga/katsubou_animajemera/

Seme was straight before being with botton. Botton is bitchy more in personality, has experience if I remember right. It has more mangas after this. They have issues but I like the progress
https://www.mangago.me/read-manga/therapy_game/

Very slow to get to the relationship
https://www.mangago.me/read-manga/take_off_jui

Botton looks like a criminal but they are happy
https://www.mangago.me/read-manga/my_rental_boyfriend/

Fantasy. The demon lord was innocent before the botton
https://www.mangago.me/read-manga/reincarnated_into_demon_king_evelogia_s_world/

Botton and same are eachother's first man but botton had A LOT more experience with women. He is a sex addict. Also, he gets a famale genital instead of his original one because reasons
https://www.mangago.me/read-manga/missing_pepper_case/

Fantasy. Botton has a small harem and both sexes in his body (but looks buff)
https://www.mangago.me/read-manga/the_duke_wants_to_have_an_heir/

Isekai. Original body had all the experience. It has issues. Read with caution
https://www.mangago.me/read-manga/i_was_reborn_as_the_villainess_father_and_i_need_xxx_to_survive/