REPRINT
I2V:
This was trained specifically for I2V, including some where the man is not in frame. This should allow you to have the origin be out of frame, or have the man walk into the frame when he did not start there.
I've included the workflow I used for the preview images in the "Training Images" download.
T2V:
Most of the previews were created with strength 1, a couple were 0.7, and that might look better. Not sure what the ideal strength is.
Various phrases you can try:
{is kneeling in front of a man|is lying on her back in front of a man}
(Mix and match as desired):
Cum shoots out of the man's penis and lands {on her face|in her hair|in her mouth|on her tongue|on her chest|on her *****|on her eye}
The man is stroking his penis back and forth with his hand
kneeling in front of a man and stroking his penis back and forth with both hands
The view is from {above|the side|POV from above}.
Her mouth is {open|closed|open with her tongue sticking out}
Her eyes are {open|closed}
The woman flinches and moves away quickly in surprise
multiple people. Two nude women are kneeling in front of a man
I2V phrases:
Cum shoots from off screen
A man enters the frame from the side