... poked his head out of his room.
"Lisa and I are going shopping. Watch after Maggie, okay?"
"Okay, Mom." Bart grudgingly agreed.
"Have fun, Bart!" Lisa taunted as she walked out the door.
"There's pizza money on the kitchen table, and you know where the emergency numbers are... We'll be back around 3." With that, Marge shut the door.
Bart listened intently for the sound of the departing family station wagon.
"Woo-hoo!" he cried, sliding down the bannister to the living room. "Noon..." he mused, looking at the clock. He went to Maggie's room, and found her asleep in her crib. He tiptoed back to his room, and began to close his door, before thinking better of it. If she started crying, he'd have to do something about it.
"Now to get comfortable..." he said to himself as he pulled his orange shirt over his head and tossed it across the room. He then grasped his blue shorts and slid them down his legs, reaching down to pull off each sock as he stepped out of his pants. With that, he jumped onto the bed.
"Mmm..." he mumbled quietly as felt the cool sheets on his body. Bart relaxed his muscles and simply lay there for the longest time. On impulse, he reached down to adjust himself through his white briefs. As his hand grasped the bump in his shorts, a thought occurred to him; "Ya know, I don't even have to have these on..." And with that, he plunged his thumbs inside his waistband and peeled the cotton underwear off his frame.