Ore ga Kanojo no Nagachichi Ikezu Mama ni Seiheki Hakai wo Sarerumade.

Kaoru Satou has finally become a couple with Chōko, his childhood friend, and he’s ready to start living it up… Or at least, he would be doing that if it wasn’t for her ridiculously hot mom making moves on him.
(Source: Irodori Comics)
Note: Released at Comic Market 105