Joe Biden has a severe inferiority complex that compels him to always make himself out to be moar than he could ever truly be. A narcissistic, compulsive need to be the "Big Guy" in the room and will always embellish and lie to make himself out to be that guy. His admission at the CFR meeting where he is bragging about getting the Ukraine prosecutor fire is a classic example.
BTW, it appears in this picture the "ole lady" sitting on Biden's lap belongs to the gentleman on the right who is getting a WTF look from his friend on the left. Ole boy looking at Biden like he is getting ready to kick his ass for fucking with his ole lady. Venture to say if Joe wasn't the VPOTUS he would be on the brutal end of a severe ass beat'n shortly after this picture was taken.