Antonio Beccadelli, The Hermaphrodite 1.22:
“Quinctius, you get an erection for women you don’t like, but cannot get it up for the ladies who please you. One who wishes to get it up should stick some fingers up his own ass. They say that this is how Paris prepared for Helen.”
Ad non dilectas, Quincti, tibi mentula tenta est;
Si tibi jucunda est, non potes arrigere.
Qui vult posse, suum digitos intrudat in anum
Sic perhibent Helenae consuevisse Parim.
This is all the many reasons I love Latin so. lol