Есть. Есть такие. Есть одно "но" из моих личных наблюдений: хентай мультфильмы в данном плане представляют ценность очень низкую, незначительную. Вот хентай-комиксы - там полный разгул.

Но ориентировочно список можно такой составить:

Advancer Tina (pregnant with a monster?)
Ane haramix (ep=4)
Behind Closed Doors
Bible Black
Bible Black Origins
Bible Black: New Testiment
Bondage Game (ep=all)
Chains of Lust
Dark Chapel (ep=1)
Dark Future (ep=2)
Dark Love (ep=1)
Demon Beast Invasion
Depravity (ep=3)
Desert Island Story XX (ep=4)
Do you know the milfing man (ep=2)
Dokidoki Haha Musume Lesson: Oshiete ? H na Obenkyou (sex scene brief)
Dorei Maid Princess (ep=3)
Elfina: Servant Princess
G-Spot Express (ep=2)
Harvest Nights (ep=1)
Hime Dorei (ep=2)
Himekishi Lilia (ep=1)
Ikusa Otome Suvia
Ikusa Otome Valkyrie Shinshou
Inda no Himekishi Janne (ep=2)
Inferno Road Volume 2
Inyouchu Shoku
Kangoku 2 (preg clip at very end maybe does not count)
Kisaku Spirit
Kisaku Spirit: The Letch Lives
Luv Wave (ep=2)
Ma ga ochiru yoru (ep=1&2)
Mahou Shoujo Ai (ep=5)
Manage a Twins (ep=1)
Maniax
Medical Humiliation
Mission of Darkness
Night Shift Nurses episodes 9–10
Nurse Me!
Princess 69 (ep=4)
Project Boobs (ep=2)
Queen's Blade
Rape rape rape (ep=1)
Region 2:
Rei & Fuko
Ride of the Valkyrie episode 2
Ringetsu
Seifuku Shojo (ep=3)
Shin Kyouhaku 2
Shin Ringetsu episode 2
Shion (ep=all)
Shitai wo arau (ep=3)
Soukou Kijo Iris
Space Pirate Sara (ep=2)
Stairs (on Kitty Pleasure Pack #2)
Taboo Charming Mother episode 6 (minor mention)
Taimannin Asagi
Tokubetsu Byoutou Capsule (ep=2)
Tsuma to Mama to Boin
Vixens(visionary)
Waver (ep=3)