...could hear Bart's soft moans. She opened her eyes, and saw Maggie between his legs, sucking hard on his cock.
"Bart!" she moaned in a jealous tone. "You promised to stop with Maggie."
"But you wouldn't do anything with me!" Bart replied. "And Maggie's so good at sucking" Bart moaned.
"Oh yeah! We'll just see about that" replied Lisa in an even more jealous tone. "I want to be the one to swallow your sperm!"
With that she got up and pulled Maggie off. Maggie let out a loud cry in protest and tried to force Lisa away. Lisa took Bart's cock into her mouth, first tasting Maggie's delicious saliva, the Bart's even more delicious cum. She sucked hard as Bart began to moan even louder.
"Oh Lis' I'm close!" he moaned out loud. He began to buck his hips as he shot his first load into Lisa's mouth. Lisa closed her eyes lazily as Bart's sperm entered her mouth. She swirled it around her tongue for a while tasting the same juices that had impregnated her womb, before she swallowed. She had to constantly fight Maggie off, who was trying to suck him again. Bart lay back on the bed. The sight of his two sisters both fighting for his spunk turned him on no end and he shot another load into Lisa's mouth. When Lisa had finished she pulled off. Maggie immediately grabbed Bart's cock and began sucking again, hoping to get some left over juices that Lisa had mis...