Toddler wanting to breastfeed?

Livi 🦊
Have any moms experienced their toddlers having a sudden interest in your breasts once you got pregnant again? My 2 yo & I haven't nursed since he was little little & now he has a sudden fascination with my boobs. I kid you not he just kissed my boob?? Over my shirt of course. I don't know how this is going to go when he see the LO breastfeeding. Help. Advice. Anything!