Delicious sounding. I had a delish idea too. Always happens in the shower for some reason. Cersei confessed to the loss of Robert’s baby to Kat. Both these women knew Nedd had a bastard, Jon Snow. I would write that Jon Snow was a love child of Nedd and Cersei. Robert asked Nedd once about his lover, can’t remember, think Wylla was her name. A nickname perhaps. Nedd asks Cersei, willya lie with me? and Cersei’s reply, Wylla. Remember Nedd would tell Robert nothing of his love affair with the woman. I doubt even Cersei could kill one of her offspring but she might spirit it away as a bastard of Nedd Stark so her incestuous children with her brother may inherit the iron throne.
When Ned confronts Cersei in the Godswood of Kings Landing in the first book...there’s only one mention of the child she had outside of her relationship with Jaime. She admitted to aborting it.