Masquerade Hypnosis ~Before I knew it, I'm Pregnant with your Child~ / なりすまし催眠～知らない間にあなたの子を身ごもっていました～

The protagonist is a chubby unpopular guy who spends his days
envious of people.
If only I was that girl's lover, if only I was that wife's husband ...
I'd bang the f * ck out of them all day, everyday.
Such desires are well up from the depths of the protagonist's heart.
And one day ...
When he meets some weird girl, he ends up getting a hypnosis device.
With the power of hypnosis, his dreams come true.
Masquerading as their lovers, husbands, etc. the protagonist will violate
all those heroine's he had been secretly harboring debaucherous desires for!