Looking for a manga were 3 shota go to red light district

Hi i am looking for a manga
were three kids talk about how awesome red light district and the plan to go there, so this three kids go to the red light district and then suddenly there was a woman with big tits ( i don't remember if she has a armband or not ). so this woman cornered this three kids in a alley and this woman sucks the three shota and they fuck.

thats all i remember i hope someone know what is the title of this manga 😊😊ðŸ™ðŸ™

*trying to help if you don't know the meaning of red light district

RED LIGHT DISTRICT
-red-light district or pleasure district is a part of an urban area where a concentration of prostitution and sex-oriented businesses, such as sex shops, strip clubs, and adult theaters, are found.


(sorry for my bad grammar)
the title is
Sex Counseling and the author is Shinozaki Rei
thank you :3

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