by Shoggoth on the Roof » Mon Aug 17, 2015 4:31 pm
Any time you're not pregnant and have vaginal intercourse (or anal, if you've got the MPreg feat), you've got a chance of getting pregnant. Selective Mother means that whenever the chance succeeds, you're given a yes/no option instead of simply automatically being impregnated. Several other factors can improve your odds of pregnancy- the Fertile feat (required for Selective Mother anyway) and being in heat are two.
Orthas the dragon lady in Trevor Labs has a 100% chance of impregnating you if you're a herm or you're female and have a Seed or Cum item in your inventory once you've stood guard for her.
A big monster like that on such a pointed roof... You may ask 'how does it stay up there, if it's so difficult?'
That, I can tell you in one word: tentacles!