She enthusiastically is!

"...you know what? I think you're right, Issei..." she grinned, and immediately tackled him to the ground and started to kiss him.

"Mmmph!" Issei moaned as he held her close and started to return the kiss.

Koneko sighed and face palmed. "Great, the pervert got lucky, and managed to seduce another girl... He's going to be insufferably proud of himself for that."

"Not just a girl, but a nun, too," Kiba chuckled. "That's a genuinely impressive amount of rizz. Even if a Sex Genie helped him."

"Well Asia, now that you're a part of the harem, we'll discuss the terms of your inclusion later," Rias smirked, digging in her pocket. Asia paused and broke the kiss.

"...terms?" she asked.

"It's mostly just about the dynamic you and Master will want to have," Rias replied. "But we can talk about that at home. But for now, we have another matter to address." She pulled out the bishop piece. "Now we need to decide whether you go back to the Fallen Angels, or become a Devil. Though if you choose the former, that might complicate your status as a member of Issei's harem..."

"The week's not up yet though, she still has time to decide that part," Issei told Rias, still holding Asia atop him.

Akeno shrugged. "True, but now that the matter has Azazel's attention, better to choose now rather than later, make sure we all are clear on where the matter stands."

"It's okay, Issei. I made my decision," Asia nodded, before looking at Rias. "I will do anything to stay with Issei. I'll... Take the piece."

Rias smiled, and said, "Then stand before me, and I'll start the process." Asia bit her lip and nodded, getting up, and steeling herself. Rias began to intone the incantation to infuse the piece to Asia, and make her into a Devil. After a couple of minutes, it was done.