The Creepy, Horrifying World of Family Relations

Remember the good old days in TS1: Making Magic, when ageing wasn't a thing, but children could use a spell to become adults and, since the game didn't recognise family ties at all, start full-blown romantic relationships with their parents immediately afterwards? That happened to me once by accident. Thankfully, sims in TS4 in general seem to be less autonomously flirty and don't fall in love as quickly, so unwanted flings are easy to avoid, but I can understand where the discomfort comes from.