SONE-754 Review: I’m Horny for My Girlfriend’s Sister Shino Mayu’s Huge Tits

Shino Mayu getting a titty fuck cumshot in SONE-754

SONE-754 stars Shino Mayu in a “Girlfriend’s Elder Sister” storyline, though it’s not the slutty seducing trope that you see in most JAV movies. Here she plays a shyer character which suits her perfectly as she weakly accepts her sister’s boyfriend’s request to play with her big tits. The movie has 4 scenes all with lengthy titty fuck segments, and 2 of them have a titfuck cumshot.

Movie Details

SONE-754 movie cover featuring Shino Mayu
Movie Name彼女の姉の生着替えを覗いたら…モノ凄い巨乳ボディに性欲即発!天然で 無自覚で 押しに弱い お姉さんに本気でお願いしたらヤラせてくれました。

SONE-754 When I Peeked At My Girlfriend’s Sister Changing Clothes… I Got An Instant Sexual Desire For Her Huge Breasts! She’s A Natural, Unconscious, And Weak To Pressure, So I Asked Her Seriously And She Let Me Do It.
StudioS1 NO.1 STYLE
Release Date10th June 2025
Pinching Finish
(挟射回数)
2 Titfuck Cumshots (2 パイズリ挟射)

Movie Review

Scene 1 – Titty Fuck + Sex

Shino Mayu getting her huge tits smothered

The first scene has the guy walking in on Mayu who is changing out of a wet T-shirt, and pleading to see her tits. Once he got a look at them he lunges at them like a hungry baby. This scene has close to 8 minutes of paizuri, but sadly it goes into intercourse where he then finishes on her tits.

Shino Mayu getting a cumshot on her tits
Performance (演技)
Eroticism (エロ度)
Pinching Technique (挟むテク)
Finish (射精度)
Average

Scene 2 – Titty Fuck (1 TF Cum)

Shino Mayu giving a titty fuck

Scene 2 takes place at Mayu’s front door where the guy confesses his lust for her and wants her right then and there. From there it’s just 10 straight minutes of titty fucking to completion. Not exactly ideal for me as Mayu-chan still had her bra on. Still the way she clasps her tits together at the end was great and looked super tight, but at the expense of the cumshot which was completely buried inside her cleavage.

Shino Mayu giving a titty fuck
Performance (演技)
Eroticism (エロ度)
Pinching Technique (挟むテク)
Finish (射精度)
Average

Scene 3 – Oiled Titty Fuck + Sex

Shino Mayu giving a titty fuck

Scene 3 has more incredible-looking paizuri from Mayu, this time even with her being fully naked and oiled up. Sadly this was another intercourse scene that ends with a cumshot on her ass.

Shino Mayu getting a cumshot on her ass
Performance (演技)
Eroticism (エロ度)
Pinching Technique (挟むテク)
Finish (射精度)
Average

Scene 4 – Titty Fuck + Sex (1 TF Cum)

Shino Mayu teasing a penis between her tits

Thankfully they saved the best for last. By the final scene Mayu has also fallen for the male character and is now dictating the action. She even asked for more after getting a titfuck cumshot out of him in the middle of the scene, which he certainly gave which led to an intercourse segment ending with a facial cumshot.

Shino Mayu getting a facial cumshot

Not the best titty fucking out of the movie, but still plenty serviceable with her skimpy bra and in my favored position. The cumshot wasn’t as strong as I would have liked, but at least it was visible with Mayu-chan keeping her tits apart unlike the previous money shot. Her continuing to pump him even harder post-orgasm was also a nice touch.

Shino Mayu getting a titty fuck cumshot in SONE-754
Performance (演技)
Eroticism (エロ度)
Pinching Technique (挟むテク)
Finish (射精度)
Average

Summary

Overall a very enjoyable movie from Shino Mayu with a nice story to go with it for once, considering the previous releases she’s had. There’s close to 30 minutes of pure titty fucking in here, and it’s a damn shame that S1 rarely allows fake cumshots. Mayu-chan still hasn’t had that one scene where I would go back to again and again, but when it (hopefully) comes, these will be some excellent “supplementary material”.

SONE-754 movie cover featuring Shino Mayu
Overall Enjoyment
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Actress Information

Potrait photo of Shino Mayu from SONE-538
Image courtesy/copyright of S1 NO.1 STYLE
Actress Name篠真有 (Shino Mayu)
Date of Birth30th April 2000
B-W-H
(Cup Size)
100cm-55cm-90cm (J)
Related TagsJapanese, Natural Tits, Huge Tits (爆乳), Skinny (スレンダー)

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