It is getting easier to have shorter play sessions. Charlotte was gently brought to her dog bed because she was being naughty a bit with all that barking to billy inside to get him to play while she was tired. Charlotte seems starving but she puked today from overfeeding (many treats and 1.5 to 2 cups of puppy food by 12pm). She is eating her slow feeder bowl. She truly is starving but she had about 3.5 cups today of food and much treats and puked the 4th cup. I will have to be more regular on the clock with her three meals a day. I should feed her at 7am, one cup.5, I feed at 12pm another cup, and one cup or a bit more for4 cups at 5pm. Bily snapped again at Charlotte. We cuddled everyone on the play pen matress hubby and I , each our turn, and that may have been a bit much for Billy in retrospect. Oh good, they play less, Billy is now getting grumpy because i keep chatsising him to leave her alone he was obsessing about her.  Good they are chewing on each other and grooming each other right now. Charlotte is letting out an occasional bark. I will let them play without interfering until I hear a yelp or a grump. They need their freedom of expression and Billy may be able to teach her kisses (little chews he does to everyone including the cats .Plus I am observing how they act together when one is tired or the other one does not want to play.

Charlotte by now gets naturally a ton of timeouts : Billy does not chase her when she leaves the play mattress area in the living room. They were both super excited when they started playing together after 24-36 hour of pure jealousy from billy at first. Billy is way more passive with her and lets her climb on top of him a lot without too much reaction. She can bite and chew him much before he ever looks tired.

It is a good play right now. May they continue growing together and may my interference not fuck up their vibe natural. i just added some rules to the play sessions. 

Charlotte plays actually with Laurel when he is in his tunnel. 

UPDATE

I just saw their best play so far and they did not either go crazy for 45 minutes but simply 10 minutes. Perfect. They were playing in the kitchen and when Billy came to the living room, Charlotte decided to rest. Billy respected her bow and came to lay at my feet. I have no idea what i am doing to be honest about this constant teaching and patrolling their too long or overexerted play sessions inside in the last week. pretty clear to me we needed to implement some strict or serious rules about this play business all day long allowed inside if there is more much much more rest and sleep time than play inside.