Yes and yes

As Adela rolls off of Grace, you ask "Are you sure?"

"Yep."

"You're the best babe."

Adela smiles. "I know."

You then look to Grace. "Do I need to grab a condom?"

With her legs spread, Grace says "Nope. You needa stop talking and start fucking me."

Grinning, you lurch forward and put your tip against her slit. Before pressing inside of her, you turn to your girlfriend one last time, who bites her lip as she gives you a nod of approval to start fucking another woman. Without further ado, you press your cock inside of Grace, causing her to moan. For a second or so, you thrust before Adela says "That feel good babe?"

"Yeah." You both reply.

As you and Grace chuckle, Adela says "You two look so hot right now."

You continue to piston away, still somewhat in disbelief that Adela is letting you get away with this. Grace, however, embraces it with a grin as you thrust away, moaning your praise. Meanwhile, Adela puts her thumb on Grace's clit, and begins rubbing it.

"Ohh fuck..." Grace cries.

"That feel good?" Adela asks.

All Grace can manage is a nod as the two of you overwhelm her with pleasure. Adela's other hand explores Grace's body, eventually squeezing on one of her breasts. You fondle Grace's other boob as her moans grow louder. You glance over at Adela, finding not a hint of jealousy in her face. Hell, she even seems to be enjoying this as much as you are.

You then turn your attention back to Grace, who's looking at you with her jaw dropped. She seems completely lost in ecstasy. All she can do is moan your praise as you continue to plow her, and it's not long before the mix of sensations has Grace on the brink, her hands clawing into her bedsheets as she trembles with anticipation.

"Oh my God..." Grace cries.

"You gonna cum for us?" Adela asks.

"Yes... I'm so close. I'm so fucking close."

With one final thrust, you push Grace over the edge and into a body-shaking climax. As she writhes in front of you, Adela kisses you on the lips. During the kiss, you pull out of Grace, so Adela grips your slick shaft and begins stroking it. A few pumps cause you to spurt your seed onto Grace's pussy lips. Now done, you pant whilst Adela continues to pump your cock, making sure to completely drain you.

Once again, you turn to Adela, who has a beaming smile on her face. The two of you share a kiss, before Adela asks "How was that?"

"Great." You say.

"Think we should do it another time?"

"Hell yeah." Grace interjects.

"Well, I think that makes three of us." You reply.

"It sure does."