another test. orgasm is caused by masturbation with a dildo and stimulation of the breast and nipples with vacuum vibro-suckers. medical indicators controlled during orgasm: blood oxygen saturation, pulse, electrocardiogram.
interesting proofs have been obtained for my hypothesis about the “hucow phenomenon” concerning the effect of vacuum nipple stimulation (sucking emulation) on a woman’s ability to experience a vaginal orgasm. some video footage uploaded here ->>