OK! Exclusive: Calvin Harris Is Ready To Marry Taylor Swift And Wants 'At Least' Three Children!

Watch: Calvin Harris Is Ready To Marry Taylor Swift

Calvin Harris is very smitten with his 25-year-old girlfriend Taylor Swift. So smitten that the two are already considering marriage—and a baby!

“She ticks boxes I didn’t even know existed,” Calvin said in recent months about his romance with the “Bad Blood” singer. And a source tells OK! exclusively that though they aren’t officially engaged (yet!), that hasn’t kept the couple from discussing wedding venues already!

The top venue on the list? Five-star Coworth Park Hotel, which is located in the countryside near London.

And while Taylor may be keeping mum in interviews about Calvin for now, it is evident based on her cute photos of the two on Instagram that she is in love with the Scottish DJ/producer.

Says the source, “she’s not shy about telling anyone who’ll listen that she loves him, and she’s not being coy around him either; at a recent dinner, she blurted it out and asked him if he’d ever consider marrying her!”

And no, Calvin did not freak out when she said that. Apparently, he just wants to make sure he goes about their engagement the traditional way. “Calvin found it ‘adorable.’ Now he wants to do it all properly; he’s even going to ask her dad for his approval,” reveals the source. Awww!

As for the wedding, since Taylor and Calvin are the highest-paid celebrity couple, you better believe their ceremony is going to be huge—and costly! According to an insider, the price tag could top $2 million!