Cum explosion in mouth. Trained on animated and real videos, using I2V wan2.1 model, where cum exists a closed mouth at different intensities. "level 1 ejaculation" "level 2 ejaculation" or "level 3 ejaculation" at start of prompt. Other enhancement terms are "a vast amount (or gallons)(or large amount) of sperm is gushing (or flowing) from her mouth". If need, in some cases you may need to input "Sperm only flows from the woman's mouth" and/or "Sperm does not flow from the man's mouth"