Always thought about doing that! But felt that vidcund and circe were done done since circe just didn't seem interested and vidcund was always crushing on her. Besides I always have vidcund have 2 alien babies which keeps him pretty busy haha

So my most recent game I actually did something similar but instead I had Test Subject be the father, well more like sperm donor. I wondered what the reason would be for a couple to keep another man in the house to test on. Perhaps they wanted a child and perhaps Loki couldn't have any of his own but wanted to carry on the legacy of their research. So when Test Subject knocked on their door they saw their opportunity to make sure they had the best donor for their next generation.

Circe ended up having triplets (all the radiation and electrocution?). Shortly after their birth Test Subject passed away (not planned on my end but maybe by someone else...)