Male Asriel x Male Frisk x Female Chara

We're only ADOPTIVE siblings

Asriel walked down the hall, looking for Chara. "Chara! Where are you?!" Asriel called out in the front room. Wait, Where the hell is Frisk even?.. Asriel thought to himself. He started to hear a strange sound coming from Chara's room. He went closer to Chara's room. The sound got louder. "Chara, Frisk?" Asriel said knocking on the door. No one answered, but the sound continued. Asriel decided to go in Chara's room.

LEMON TIME MY SINNERS!!!
Asriel gasped at the sight he saw in Chara's room. It was Frisk and Chara lying on top of each other, basically naked. Asriel gasped, alerting Chara and Frisk of his presence. "A-ASRIEL IT-IT'S NOT WHAT IT LOOKS LIKE!" Frisk yelled. Chara sighed and said," Asriel so maybe it is what it looks like, but it's okay, as long as you don't tell Mom, Dad, or Sans." Asriel shakes his head as a way to say okay. Asriel came a bit closer to the two, Chara and Asriel looked at each other and blushed a little. "Asriel, I need something inside me, please help me Azzy~" Frisk said to Asriel lustfully. Asriel was froze in the one spot. Frisk took advantage of this, by getting up and going over to him. She bent down in front of him, and pulled his pants down. It took about a minute for Asriel to realize Frisk was there. "F-Frisk! What the hell are you doing?!" Asriel yelled out in panic. Chara got up and went over behind Frisk. She then bent down behind Frisk, and put her hands on both of Frisks breasts."Ohh~"Frisk said when Chara squeezed it. "Azzy, I know this is strange for you but remember we're only ADOPTED siblings, so it's okay." Chara told Asriel while pleasuring Frisks boobs. "O-Okay.."Asriel said in response. Frisk pulled Asriels Underwear down, revealing a large hard furry dick, ready to be used. Frisk grabbed Asriels member, and teased him a little."Frisk stop teasing me!" He yelled in annoyance. Frisk obeyed him, and started bobbing her head up and down his member, while Chara stood behind Frisk grabbing her boobs. Asriel moaned a little. Chara got up and got closer to Asriel. She kissed him lustfully and when she stopped there was a long line of saliva from there mouths. Frisk kept sucking Asriels dick, which was about 10inches long surprisingly. "F-Frisk I'm g-gonna!"Asriel was cut off when he started to cum inside Frisks mouth. Frisk swallowed the juice and got up slowly, in a sexual way. Chara got down and started taking her turn sucking Asriels cock. She sucked at an almost inhuman speed. Asriel moaned until he cummed into Chara's mouth without warning. During the time, Frisk was sitting on the bed, fucking her self with a soft comb. Once Asriel cummed, Frisk and Chara walked over to each other and kissed. "Okay, Okay you have both pleasured me. Now let me pleasure you~" Asriel said with a hint of lust in his voice. Frisk and Chara smiled lustfully and rubbed each other's pussy's together, making them moan loudly. Asriel walked over to them, separated them, turned Chara on her back, and slammed his dick into her hard. Frisk got up on all fours on the bed, hands and legs, and stood over Chara, putting her pussy right in Asriels  face. Asriel licked Frisks pussy, then started thrusting in and out of Chara at a mild pace' "Asriel focus on me~" Chara told him. Frisk laid  down on top of Chara, putting her hands on Chara's boobs. Asriel with no words, started slamming in between Frisk and Chara's pussy's. Frisk and Chara moaned a little. Asriel then put his dick into Chara. He went at a moderate pace. "F-Faster dumb ass~" Chara said playfully yet lustfully. Asriel sped up. Then he went faster, and faster. Now going at an in human pace. Frisk moved off and in front of Chara, and stuck her pussy in front of Chara's face. Chara licked it, moaning a little in between. Asriel tried to go even faster, now using magic. Chara cummed, then Frisk cummed in Chara's mouth, Asriel had cummed in Chara's pussy quite a bit, but yet didn't slow down and didn't stop. He kept going and going, cumming  like crazy. "A-Azzy slow down! T-take a break!"Chara yelped. "No! You're mine now! Same with you Frisk!" Asriel said demandingly. Asriel stopped for a second and made Frisk and Chara lock there legs together. Asriel laid on the bed, his cock directly underneath the center of Frisk and Chara. He then made Frisk and Chara scoot together and lift themselves up and down/on and off his dick. He made them go faster and faster. Asriel, Chara,  and Frisk all cummed but Asriel made them keep going. They all moaned nonstop. After Asriel made them do it for about 10 more minutes, they all stopped. Frisk and Chara looked for there clothes but realized they had left there clothes outside on the Front room chair. "Oh what a shame, I might just have to kiss both of you at the same time while we walk to the chair and grab your stuff." Asriel told both of them. They all got up and kissed each other st the same time. They walked at the same pace Frisk on the right, Chara on the left. Asriel kissed them both, also playing with there boobs. Once they reached the front room, Frisk and Chara stopped kissing Asriel and each other and put on there clothes.