Simple, the user above post an action non lewd or lewd(could be a sexual position) and you post with which character you would do it and why(if you want, also post a picture). Also drop an action for the next user
I'll start:

Missionary position sex

Ganyu, because very cute!!
rule34.xxx/index.php?page=post&s=view&id=8291408

Action for the next person:
Watching a movie together while cuddling on the couch.

Chisato Nishikigi
rule34.xxx/index.php?page=post&s=view&id=12008364

She's very cuddable and likes action movies

Action for next person:
Go to a wedding were you don't know anyone else

rule34.xxx/index.php?page=post&s=view&id=6695347

she'd make it more entertaining

Action for the next person:
Getting head while you perform some other task (on your phone, playing a game, etc)

Marin Kitagawa
rule34.xxx/index.php?page=post&s=view&id=12126929

I feel she would like to do it as a challenge while I play

For the next user:
Having sex in a public bathroom

Chika Fujiwara
rule34.xxx/index.php?page=post&s=view&id=4504601

Action for the next person:
Hate-fucking

Hayase Nagatoro, no Brainer for a hate fuck session
rule34.xxx/index.php?page=post&s=view&id=12013233

Action for next person:
Bound and gagged session

I want Yelan to bound me, gag me and use my body fornher pleasure
rule34.xxx/index.php?page=post&s=view&id=7923943

For the next user:
Open a restaurant

Would love Emi Yusa
rule34.xxx/index.php?page=post&s=view&id=6535441

Next action: Syrupy footjob at a Dennys

I'd open an Italian restaurant with my boy Luigi!
rule34.xxx/index.php?page=post&s=view&id=9958437

For next user:
Explore a haunted mansion

Syrupy footiob at Denny's I guess would be mutual rule34.xxx/index.php?page=post&s=view&id=3704748

With Uraraka: rule34.xxx/index.php?page=post&s=view&id=4676221

As for going to a haunted mansion, I'll go with Luigi my baby rule34.xxx/index.php?page=post&s=view&id=12113512


Next action: stealth oral/anilingus

Barbara Pegg
rule34.xxx/index.php?page=post&s=view&id=11649546

I would eat her out while she is doing some chruch duties

Next user:
Doing a threesome with her
rule34.xxx/index.php?page=post&s=view&id=8410400

easy. i would get her sister into the boat!
rule34.xxx/index.php?page=post&s=view&id=12045585

next user:
french kiss

Definitely with Marina from Splatoon.

rule34.xxx/index.php?page=post&s=view&id=11876093

Next User:
Mommy Kink

fade from valorant
rule34.xxx/index.php?page=post&s=view&id=8499567

next user:
let peg you