[s5e23] The Launch Acceleration (macOS)

: Leonard and Penny decide to "speed things up" in their relationship. However, Leonard takes this too far by accidentally proposing to Penny during sex, which immediately kills the mood. While Penny says "no" to the proposal, she confirms they are still dating.

: This meal is a "continuity nod" to the Season 3 episode "The Spaghetti Catalyst". [S5E23] The Launch Acceleration

"The Big Bang Theory" The Launch Acceleration (TV ... - IMDb : Leonard and Penny decide to "speed things

: Sheldon wears red long johns under his tuxedo at the fitting to "protect his urethra," claiming he looks like "The Flash getting ready to be wed". [S5E23] The Launch Acceleration