I had a knowledge sim maxed out on his science enthusiasm decided to try the summon aliens option on the expensive telescope. Well, he most certainly did get abducted, but he didn't come back pregnant. He's an adult male sim so he should have been pregnant. Is this is glitch, a mod hack, or did the instances of alien pollination from abduction change to a random thing now that sims can summon aliens at will.

I have to say I was disappointed he didn't get knocked up.

I used a hacked telescope on Spock(poor thing)

I believe if a sim uses "summon aliens," there's a less than 100% change of pregnancy. You may have to try a couple times.

Yes. After all, the aliens have things to study on Sims that don't involve rectal probes.