It’s like she’s purposefully trying to rub her pussy against your fingers or at least get them close. So you decide to rub up close to her pussy on her inner thighs and see her reaction. “Mmmm” She says again rocking her hips back and fourth moving down scooting her pussy closer to your hand. You know for sure she is enjoying this. She wants you to touch it. So you rub even closer to her pussy between her thighs touching the outer corner of her bathing suit and sliding under with your fingers just a little touching the other flap of her pussy..... she looks back and says “mmm they feels good. It’s like a massage. You should do the front too.” You look around and everyone has congregated inside and you and ivy are the only ones in the backyard still.