Yes. It was. It's been common knowledge for years that he is gay. Family Guy made a joke about it over a decade ago. So then his timing, as Greg said, makes it obvious he is deflecting. Plus I'm skeptical he was so drunk he has no memory of picking up and carrying a 14 year old to bed.
Shit, I dont remember when I drunkenly make passes at people. Hell I carried a woman from the bar, through the establishment's kitchen in a flirtatious endeavour and had no recollection of it whatsoever in the morning. The only reason I know about it was because I was told about it by my friends who were present and multiple staff members there confirmed the story. I didnt even black out that night, just got too drunk to recall the entire evening in the morning.
If you spend regular time drinking heavily, as I and young Spacey was known to do, you will have holes in your memory of those nights (and some days ).