Is it possible to create a cavity between the lower openning of the digestive tract and scrotum&(through plastic surgery or otherwise) with the following attributes:

1)Proximity to the prostate gland and..
2)More muscular linings?
3) (optional: implantation of remote-controlled micro-electrodes)
An alternative female version near the vulva to accommodate certain periodicity&variation could also be considered.
Imagine the positive impact on health care and lifestyle.....................

Now seems those in 'alternative life style' also agree, a vagina is just a hole like the other 'holes'