https://www.dlsite.com/maniax/work/=/product_id/RJ317277.html/?locale=ja_JP

https://twitter.com/Kntaid/status/1359766635087683584

https://www.pixiv.net/users/18295877/artworks

Base +54

this looks really good
thanks

Base +6

Here's links for chapters 2 and 3. And a plot summary of the whole plot for those interested:

Ch. 2 /g/1876676/00d05e8c6c/
Ch. 3 /g/1895801/80427421d4/

Ch. 1 We have four friends, Mio (neck length hair), Rin (short hair), Julia/Yuria (long haired blonde), Touko (long black hair).

One day at school they spot two senpais kissing each other. Later they watch lesbian porn together for curiosity, and then Julia proposes they have sex with each other. The only pair that doesn't get realized is ToukoxMio. Also, the experience felt particularly weird for Mio and Rin.

Later it's revealed one of the Senpais was actually Julia's either gf or ex-gf.

Ch. 2

Flashback time, Julia and Rin are childhood friends. We also follow Mio and Touko together, they get it on on their own 'cause they didn't have the oportunity last chapter.

Rin is interested in Julia, but Julia acts cold towards her because she's pissed about the situation with the Senpai who cheated on her. Which later leaves Rin vulnerable to be taken advantage of emotionally by her coworker (who apparently is kinda of a sex predator). Meanwhile Julia and the Senpai have sex one last time before parting for good.

Ch. 3

Rin had an image change! Yup that's Rin, not Mio we see at the start. She's apparently in a relationship with that coworker. She's unhappy in that relationship because the coworker only wants to bang her, without any care for how she feels (for ex, she doesn't like to use the strap-on, and she wants something beyond just sex). She also cheats on her, like, in her face.

Rin's quite sad, but receives a message from the group of friends from the previous chapters whom she hasn't seen in a while. They meet, and smokes, Touko and Mio are in a relationship. They propose sex, where Touko watches Rin and Julia banging Mio, she's apparently into ntr. Next the girls pair up and get it on, and by the end everyone had a good time, with RinxJulia looking good.
___

No idea how accurate this is, but it's what it feels like to me.

Base +6