I wore thong and my sister usually wear regular panty. He got doubt.Suddenly he went and switched on lights he found it was me in my lingerie’s. He ...aw and he was shocked. And my sister was also standing in the room. My jiju was shy and he started looking down. I went to him and started touching his dick. He was resisting and looked at my sister. I held his head and told him “jiju aapki b’day gift kaisa raha”. My sister also started laughing and she also came closer to us.Sister: it is your. Then she whispered: take off my bra, sexy boy. I hesitated for a second but then I ripped of her bra, revealing her beautiful C-cup breasts. They had a tanned colour and her nipples clearly pink. I immediately took them in my hands and stroked them. She noticed I got turned on even more, and she bent over putting her breasts in my face. I gently started to lick one of her nipples. After I had sucked on her other nipple she went down to my cock. She grabbed my balls and began to lick them while. "OK let's see what you have on." I dropped my jeans and took off myshirt. Turning around to show off the RHT seamed stockings (I'd madesure to get the seams straight) which were held up by the 6 strap garterbelt and the finishing touches were a matching black panties and bra,both decorated with little black bows."Hmmmm nice you're beginning to get quite good at this," she said givingme a close inspection, "and I see you are finding this exciting."She picked up the eye shade and came over to me,. I pulled my pants down to reveal the massive cock. He stared at it in disbelief. It only took a split second before he dived at me and took the whole thing into his mouth. He shocked me but I quickly adjusted and grabbed his hair to guide his head in sucking my dick. His eyes met mine and I almost came right then. Who knew seeing him like that would make me so wet? I pulled his head back from me and said, “Baby bend over.”Just like before, he eagerly followed every word I said. With his ass in.