Ok so buffy is married to liam/angel and william/spike is his son. I'm not 100% sure but i think buffy and william are swimming and they fool around a bit in there (nothing sexual) and later on she gets drunk and goes into williams room and has sex with him. When she wakes up she is sick from the drinking and throws up ...william thinks she is sick with herself for sleeping with him and gets angry/upset. He leaves, but when he comes back his spike and is dating dru .... umm i think after a while of him being horrible to buffy for what she did to him they start to sleep together again and carry on the affair ...i think in the end liam dies and the police think buffy did it but she was at the hotel with spike that night ...or something lol im not to sure.
But yeah ...if anyone knows what im talking about can you please let me know.
Thank you. | 
