Before reading, make sure you check out chapters 1, 2, and 3 first. Enjoy!
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The next morning, Lily and Marc slept a little later, getting extra rest from their wonderful evening together the night before. They were still spooning as Lily was the first to awaken, feeling Marc's hard cock nestled between her ass crack. She decided that she was just going to enjoy this moment and did not move. She loved the feeling of his hard dick and gently wiggled her ass to see if it had an effect on him. Surely enough, she felt his erection grow even stronger and she could feel him awakening from his slumber. Reaching over, he gently started to caress her tits, causing her nipples to instantly harden. Brushing aside her hair, he began to gently kiss the nape of her neck. This had an immediate impact on Lily, causing her pussy to grow much wetter than it already was. To add to her arousal, she felt Marc's hand drop from her tits, slide down her stomach, and reach her pussy. He started to play with her clit as she moaned in delight. Lily thought of something that she wanted to try, so she turned around to face Marc, dislodging his hand from her pussy.
"Good morning, baby."
"Good morning, sis. I decided that I was going to keep the promise I made to you last night that I would get you off first thing in the morning."
"That's so sweet. But I actually said that I wanted us to get each other off. You're going to love this," she said as she crawled down to Marc's wonderful cock. By this time, he was fully erect and she could tell that he was clearly ready for some action. Taking his dick in her hands, and after kissing the head of his cock, she fully engulfed him into her mouth. There was no teasing with the blowjob like she did last night. Lily got right to hungrily sucking Marc's manhood.
As his dick was being sucked, Marc laid back and enjoyed what his sister was doing to him. Her tongue was working wonders as her lips slid up and down his shaft. He then felt Lily shifting her body as she started to point her ass towards his head. Marc caught on quickly that she was getting in position for a 69. As her thighs lined up with his head, Marc was looking at the most wonderful sight in the world; his sister's aroused pussy.
Marc immediately set to work, attacking her pussy. She was so wet, and from the taste he could tell that he was eating a combination of her pussy juice and his cum from the night before. The taste drove him crazy as he eagerly lapped up their combined juices. He spent some time licking her clit, and then rammed his tongue as far up into her pussy as he could. Lily was loving his talented cunt licking as she expertly sucked his cock.
Groans of pleasure were muffled by their sibling's cock and pussy that they were licking and sucking. Lily could feel her orgasm approaching, but wanted to see how long Marc could last, so as he increased the urgency of his pussy licking, she slowed down. She was still sucking him, but slowed down just enough to try to delay his orgasm. Marc sensed her change of tempo, and started to slow down as well, but it was too late, as Lily's thighs tightened around his head and she came hard, soaking his chin with her love juices. Lily moaned around Marc's cock as she momentarily stopped sucking as she orgasmed. Oblivious to everything around her except her orgasm, Lily absentmindedly continued to stroke Marc's cock. She must have been stroking a little too hard, because immediately after she heard him groan around her pussy, he shot his cum directly into her face. As Marc's cum splashed across her face, it immediately snapped Lily back to reality. She was mesmerized as she had an up close view of his spurting cock.
Lily's cheeks were plastered with jizz and it also dripped down her chin. Taking a moment to look back at Marc, she said, "Hey, watch where you shoot your cum!" Marc stopped licking her pussy and returned her gaze with a smile. He did not know how it was possible, but Lily looked even more alluring with his cum all over her face. After taking in the sight, he decided to get back to work, diving back into his sister's slippery wetness. As his tongue attacked her clit, Lily decided to go in for more also. Rather than wiping herself down, she decided to keep his cum splattered all over her face as a badge of honor. Her dick sucking continued, and judging from the quickness in which his erection returned, she could tell that Marc had no complaints.
Marc was happy when he felt her mouth wrap around his dick, taking the whole length of his member. He could not believe how far down her throat she was able to take him. In fact, Lily couldn't believe it either. She had never deepthroated a cock, thinking that it would be uncomfortable, but with Marc's cock jammed far down her throat, she was delighted to be giving her brother such pleasure. Eventually, she needed to come up for air, and as she did, her chest was heaving as she tried to take in as much oxygen as possible. After saturating her body with much needed air, she resumed her sucking, alternating between sucking his head and taking his whole cock down her throat.
Marc would have loved to have been able to see Lily's face now, but he knew that he had work to do, focusing on trying to get her to orgasm again. Moving his head back, Marc saw that Lily's asshole was staring right at him. The way Lily was laying on him restricted his movement, so slightly re-positioning his body, Marc felt extra dirty as he reached up and gently circled his thumb around Lily's ass. This got an immediate reaction from Lily as she mumbled, "Oh fuck!" around his cock. Taking this as a cue to continue, Marc kept massaging her butt hole with his thumb as Lily gyrated on top of him.
Marc was then overcome with an extreme desire that he never thought he would have; he needed to lick her delicious asshole. Moving his head up even further, he gingerly extended his tongue and flicked it across her ass. After a few licks, Marc was feeling more confident as his licks increased in intensity. Lily's eyes got so wide when Marc's tongue assaulted her ass, not believing that Marc would have ever done that. Lily never considered anal play before, but she was loving this attention that he was giving her. This was turning her on so much that she knew that she just needed to try it. Taking her mouth off his cock, she spread his ass cheeks apart and began licking his ass, not wanting to be outdone by her brother. Marc was not expecting that she would reciprocate, but once she did, he was lost in the pleasure.
As their arousal rose with the rimming, both Marc and Lily would alternate between licking each other's asshole and their sibling's respective cock/pussy. They were getting ever so close to orgasm when Marc locked his lips onto her clit and sucked furiously. He reached up and stuck his middle finger far up into Lily's ass. This was too much for Lily as she started cumming, and instinctively, she returned the favor, sticking her finger into Marc butt. This anal intrusion sent Marc into a massive orgasm as he came so hard into Lily's mouth. She tried to swallow as much as she could, but since she was having an orgasm herself, a good amount of cum dribbled out of her mouth, coating Marc's cock and balls.
As their orgasm abated, they once again laid next to each other, and studied the effect their 69 had on their lover's face. Both their faces were soaked with juices, and they couldn't help but laugh at how they both looked. As they kissed, the juices on their lips mingled, resulting in an especially wet kiss.
Lily said, "My head is spinning. I can't believe that we licked each other's asshole! It felt SO good, baby. Thank you for sharing that experience with me."
"I don't know what came over me. As I looked at your asshole, I knew that I just had to have it."