START-322 Review: Titty Fucking Koibuchi Momona’s O-Cup Boob Window

START-322 is a titty fucking movie featuring Soft On Demand’s resident “super breast” actress, the O-cup Koibuchi Momona. This one has an added gimmick of her wearing outfits with “boob windows” or “paizuri holes”, and she uses them to great effect by milking a total of 7 titfuck cumshots.
Movie Details

Movie Name | 恋渕ももな 超神乳パイズリ穴解禁、110cmOカップ谷間ホールに極上挟射。【笑顔と癒しのムギュムギュ応援射精体験12発】 START-322 Momona Koibuchi: Super Divine Tits, Tit Fucking Hole Unveiled, 110cm O-cup Valley Hole, Exquisite Cumshot. [Smile And Healing Squishy Cheering Ejaculation Experience 12 Times] |
Studio | SOFT ON DEMAND |
Release Date | 24th June 2025 |
Pinching Finish (挟射回数) | 7 Titfuck Cumshots (7 パイズリ挟射) |
Movie Review
Scene 1 – Dildo Paizuri Scene

The first scene sets up the premise by having Momona titty fuck a glass dildo while wearing a swimsuit with said “paizuri hole”. Sadly that was it and they didn’t transition to a real dick like how MOODYZ or OPPAI would often do it.
Scene 2 – POV Maid Sex Scene (1 TF Cum)

Our first sex scene takes place in POV perspective with Momona playing a maid who tries to lift our spirits the best way she knows how. There’s about 5 minutes of titty fucking before and after the intercourse with a creampie in the middle. The titfuck cumshot was from a pullout into straddling, but at least they gave us about a minute of pumping before the guy cums. Sadly it was a pretty weak load that took a few seconds before you could even see the semen flowing out of her cleavage, similar to a scene from Tano Yu.

Performance (演技) | |
Eroticism (エロ度) | |
Pinching Technique (挟むテク) | |
Finish (射精度) | |
Average |
Scene 3 – Office Titty Fuck (1 TF Cum)

Scene 3 has Momona playing an office lady wearing a super low-cut top. She cheers up an older colleague who is down on his luck work-wise and relationship-wise by giving him a titty fuck to completion. I liked her outfit much better in this one as you could actually see her tits. A shame that the finish was also equally weak with only a little dribble at the end.

Performance (演技) | |
Eroticism (エロ度) | |
Pinching Technique (挟むテク) | |
Finish (射精度) | |
Average |
Scene 4 – Gym Titty Fuck + Sex (2 TF Cum)

In Scene 4 Momona is a gym instructor with a sports bra. This scene has a lengthy 7-minute titty fuck to completion before intercourse, but sadly the cumshot was again super weak. The second paizuri segment after the intercourse only lasted about a minute, but we finally got to see her tits for once. And the cumshot here was pretty good to make up for it.

Performance (演技) | |
Eroticism (エロ度) | |
Pinching Technique (挟むテク) | |
Finish (射精度) | |
Average |
Scene 5 – MMF Classroom Sex (3 TF Cum)

The final scene has Momona in a cheerleader costume taking on 2 guys in a classroom. This scene has 3 titfuck cumshots, but the first and third one were super weak with barely any semen. While the second one was decent, the camera was zoomed out a little too much so it wasn’t exactly ideal for my enjoyment.

Performance (演技) | |
Eroticism (エロ度) | |
Pinching Technique (挟むテク) | |
Finish (射精度) | |
Average |
Summary
Personally I’d much prefer it when the ladies are fully naked, but I think the middle 3 scenes here are still quite jerkable for paizuri maniacs with long segments and the Scene 4 having a decent finish. Koibuchi Momona is another one that I’ve been wanting to feature here for a long time, but it really feels like she hasn’t done as many titfuck finishes as she should have with a body like hers. At only 25 years old and having already done creampies, hopefully she’s willing to explore and try out other studios that might be able to better use her gifted bosoms.

Actress Information

Actress Name | 恋渕ももな (Koibuchi Momona) |
Date of Birth | 14th June 2000 |
B-W-H (Cup Size) | 110cm-65cm-92cm (O) |
Related Tags | Japanese, Curvy (豊満), Massive Tits (超乳), Natural Tits, Big Ass (巨尻) |
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