Just some ideas I've brainstormed.

1.
You spot a male with a female cuddled into his side with cubs crawling over them.
Option(s):
Aww (The couple hear your aww and greet you. You talk with them for awhile until the little ones get tired. They give you 1 heartshell as a parting gift) +1 HS, +5 Karma
Attack (Fight with couple) +1 HS if you win, -5 Karma
Art Idea(s):
Maybe a Lion with a lioness laying by his side. Three cubs crawling on them (One on the males back, front paws on his neck/mane while tugging on a peace of his mane. Second one's butt sticking out from inbetween them, upsidedown. Third one laying next to the lioness)

2.
You spot a leopard and lioness making sweet, sweet leopons.
Option(s):
Yay Leopons! (Oops, you said that aloud. +1 Awkward Thought)
Art Idea(s):
Leopard mounting a lioness is all I can think of lol

Ideas Commented:
"You pad along, when you catch the scent of a lioness in heat...and something else. Upon getting a closer look, you see a smug leopard male mounting a lioness. Looks like he was successful in courting her this time. Maybe they'll have more leopon cubs together."

And you could have the option to try to fight with them which starts a battle and gives -5 karma, stare at them which gives you an awkward thought and 1 heart shell. Or you could simply appreciate their relationship which gives you +5 karma and 2 heart shells.