Hentai with sexual intercourse in its opening scene?

[Njr Scrawl]

Any hentai shows that have sex going on with the opening credits &/or the first post-credits scene?

[touma]

Any hentai shows that have sex going on with the opening credits &/or the first post-credits scene?

Beat Angel Escalayer has a brief sex scene before the opening credits.

[General Hentai]

Any hentai shows that have sex going on with the opening credits &/or the first post-credits scene?

Do you mean already ongoing, or where it's starting?

If you include the scene as a whole, Stepmother's Sin IIRC, starts with it, with the stepmom and her new husband.

[General Hentai]

The Hills Have Size opens with hot MILF Kasumi watching a porn movie, which has intercourse, while she's masturbating with a dildo-style vibrator.

[DocWatson]

The obscure R2-only Etchi de Happy! Pin! Pin! Pin! (http://anisearch.de/index.php?page=anime&id=5126) starts with one of the female characters masturbating and loudly orgasming.