Go in for the kiss.

Applejack opened up her mouth to say something, but just couldn't find the words. The mare knew that actions spoke louder than words though as she marched straight up, pushing her lips against her big brother's. Big Macintosh was shocked still, not sure what to do, but soon he lidded his big eyes as the blonde stallion opened his lips and mouth.

The siblings' tongues mingled and rubbed against one another. The clouds of their breaths danced across each other's cheeks as they kept in with the kiss. Big Mac was the first to pull back, breathing hard as Applejack smiled up to him, “Ahm not drunk.” she winked.

Big Mac nodded softly, “Nnnnope.” He looked over his little sister, himself holding a torch for her as well as he took in another deep breath. Applejack stepped back once, looking over her brother in the moonlight, the way it ran over the top of his strong shoulders, his toned flanks and over to his rump. She blushed hotly, seeing just the silhouette of his large, thick brown 'fifth leg' throbbing between his legs.

“Looks bigger than I remember,” AJ muttered honestly.

Big Macintosh smiled back, “We're older than before.” He nibbled lightly on his sister's ear. Applejack leaned into it, sighing in her growing need as she sighed lustfully. She needs this.